Question

Find the value of the expression $x^2$ for the given values of $x:$
$x=1,5,-6,\frac{3}{7}$

• A. $1,25,36,\frac{9}{49}$
• B. $1,15,36,\frac{9}{49}$
• C. $1,15,16,\frac{9}{49}$
• D. $1,25,36,\frac{13}{49}$

Answer 1

The correct option is A $1,25,36,\frac{9}{49}$

$x=\{1,5,-6,\frac{3}{7}\}$

Expression : $x^2$

When we take $x=1,$ output $x^2=(1{)}^2=1$

When we take $x=5,$ output $x^2=(5{)}^2=25$

When we take $x=-6,$ output $x^2=(-6{)}^2=36$

When we take $x=\frac{3}{7},$ output $x^2={\left(\frac{3}{7}\right)}^2=\frac{3\times 3}{7\times 7}-=\frac{9}{49}$

So,

$x$	$\to$	$x^2$
$1$	$\to$	$1$
$5$	$\to$	$25$
$-6$	$\to$	$36$
$\frac{3}{7}$	$\to$	$\frac{9}{49}$

$x^2=\{1,25,36,\frac{9}{49}\}$